OleLoadPictureEx function
Creates a new picture object and initializes it from the contents of a stream. This is equivalent to calling OleCreatePictureIndirect with NULL as the first parameter, followed by a call to IPersistStream::Load.
Syntax
HRESULT OleLoadPictureEx( _In_ LPSTREAM lpstream, _In_ LONG lSize, _In_ BOOL fRunmode, _In_ REFIID riid, _In_ DWORD xSizeDesired, _In_ DWORD ySizeDesired, _In_ DWORD dwFlags, _Out_ LPVOID *lplpvObj );
Parameters
- lpstream [in]
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Pointer to the stream that contains the picture's data.
- lSize [in]
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The number of bytes that should be read from the stream, or zero if the entire stream should be read.
- fRunmode [in]
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The opposite of the initial value of the KeepOriginalFormat property. If TRUE, KeepOriginalFormat is set to FALSE and vice versa.
- riid [in]
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Reference to the identifier of the interface describing the type of interface pointer to return in ppvObj.
- xSizeDesired [in]
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Desired width of icon or cursor. Valid values are 16, 32, and 48. Pass LP_DEFAULT to both size parameters to use system default size.
- ySizeDesired [in]
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Desired height of icon or cursor. Valid values are 16, 32, and 48. Pass LP_DEFAULT to both size parameters to use system default size.
- dwFlags [in]
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Desired color depth for icon or cursor. Values are LP_MONOCHROME (monochrome), LP_VGACOLOR (16 colors), LP_COLOR (256 colors), or LP_DEFAULT (selects best depth for current display).
- lplpvObj [out]
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Address of pointer variable that receives the interface pointer requested in riid. Upon successful return, *ppvObj contains the requested interface pointer on the storage of the object identified by the moniker. If *ppvObj is non-NULL, this function calls IUnknown::AddRef on the interface; it is the caller's responsibility to call IUnknown::Release. If an error occurs, *ppvObj is set to NULL.
Return value
This function returns S_OK on success. Other possible values include the following.
| Return code | Description |
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The object does not support the interface specified in riid. |
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The address in pPictDesc or ppvObj is not valid. For example, it may be NULL. |
Remarks
The stream must be in BMP (bitmap), WMF (metafile), or ICO (icon) format. A picture object created using OleLoadPictureEx always has ownership of its internal resources (fOwn==TRUE is implied).
In addition to allowing specification of icon or cursor size, OleLoadPictureEx supports loading of color cursors.
Requirements
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Minimum supported client |
Windows 2000 Professional [desktop apps only] |
|---|---|
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Minimum supported server |
Windows 2000 Server [desktop apps only] |
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Header |
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Library |
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DLL |
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See also